Light jute fiber reinforced polypropylene alloy composite plate and machining process thereof

Abstract

The invention relates to a light jute fiber reinforced polypropylene alloy composite plate. Main raw materials of the composite plate are jute and a polymer material. In a manufacturing process, polypropylene, polyethylene, compatibilizer (such as reactive-type polymer compatibilizer MPP), toughening agent (such as rubber-like EPDM ) and filler are added to the polymer alloy raw material, wherein the filler is talcum powder, CaCO3, lubricant (WAX), foaming agent (AC) for facilitating lightweight foaming, cross-linking agent (DCP) and the like. The composite plate is manufactured through a special machining process. Because various raw materials adopted in the invention are all nontoxic, no pollution can be caused to workshops or ecological environment during manufacture; due to pipeline operation, no raw materials can be wasted; due to the special machining process and coupling-agent treatment performed on the related raw materials, all performance indexes of a light jute fiber reinforced low-foamed alloy plate are greatly improved; and due to the promotion of product performance, the composite plate can be used to be made into automobile inner decoration materials in various shapes, and can be particularly used as an automobile ceiling, a front / back top plate, a back panel, a side panel, an airduct and the like.

Description

technical field [0001] The invention relates to a novel processing technology for automobile decoration materials, especially a processing technology for plates, more specifically a "light hemp fiber reinforced polypropylene alloy composite board" and its processing technology. Background technique [0002] In 2006, the applicant successfully developed "high-rigidity and high-quality composite hemp felt board" and "polymer modified hemp-plastic alloy board" in 2007, both of which are used as automotive interior materials. At present, there are mainly automotive interior materials on the domestic market: one is light glass fiber reinforced PU foam board, and the other is light GMT board (glass fiber reinforced polypropylene low foam board). The above materials have their own characteristics, but there are deficiencies: light glass fiber reinforced PU foam board (light glass fiber reinforced polyurethane foam board), wherein PU has certain toxicity, and glass fiber is in Duri...

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Problems solved by technology

The above materials have their own characteristics, but there are deficiencies: light glass fiber reinforced PU foam board (light glass fiber reinforced polyurethane foam board), wherein PU has certain toxicity, and glass fiber is in During the dusting process, serious environmental pollution is caused. In particular, it should be pointed out that this material is non-recyclable, so it is not an environmentally friendly material; lightweight GMT board (glass fiber reinforced polypropylene low-foaming board), this kind of The material is mainly reinforced with glass fiber. Although polypropylene plastic is non-toxic, it is better than light glass fiber reinforced PU foam sheet in terms of environmental performance and price. During the foaming process, it brings certain environmental pollution, and the rigidity of the product is not ideal, and the low-foaming polypropylene sheet reinforced with high content of glass fiber cannot be recycled; "high rigidity high-quality composite hemp felt board" and "polymer Modified hemp-plastic alloy board", the raw material of these two boards is environmentally friendly hemp fiber, polypropylene and polyester are also non-toxic, the material cost is lower than the above two, but the main problem is the high density of the product

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